Sharing Internet Using USB(Tata Photon +) Modem

Hi,I have a TATA usb photo + modem. I am primarly using this on my laptop. Right now there are some computer in my office on which I want to share my internet connection. But I am not able to figure out how to do that. The modem is installed on my system and it shows a dialer shortcut on the desktop. Does it is possible to share this connection. What about the speed. I am using Windows. _________________chevrolet tahoe wheel hub bearingwomens western shirts